vice president joe biden said there was no doubt chemical weapons were used. and those responsible should be held accountable. the british prime minister david cameron's office backed the white house earlier today saying both governments had clear evidence that the regime carried out the attacks. cameron has reconvened parliament early to vote on a motion on syria for thursday. but some parties are sounding cautious on international intervention. russia's foreign minister sergey lavrov has reportedly warned the u.n. that attack on syria would destabilize the region. we have heard that u.n. teams have now reached the rebel held territory east of damascus to begin inspection of the alleged chemical attack sites. at the same time, supreme leader khamenei -- saying it would be a disaster for the region. joining us for the next half ho hour, editor at large, very important to mention that, quite right. you wrote a piece, there is a view that among western politicians that the risk of doing nothing are now outweighed by the risk of appearing to do nothing. >> yeah,